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Colloquium, Fall 2004

Day: Thursday October 7 Time: 4:00pm Place: BH 112 Title: Empirical Modeling of Limnetic Temperature Profile and Estimating Thermocline Depth Speaker: Victor Chan, WWU Abstract: A reasonably precise estimate of the thermocline depth or other well-defined boundaries in the temperature profile of a lake is of interest to limnologists. In this talk, I propose an empirical model based on a statistical distribution to describe the temperature profile. Using the model, the thermocline depth and other well-defined boundaries can easily be estimated. The nonlinear Gauss-Newton method is used to fit the model to the profile data. Examples and the model-fitting procedure are illustrated using the data from Lake Whatcom, WA. The talk is accessible to upper-level undergraduates. Cookies: In BH 300 at 3:30pm.